Not sure what support prefers, but theoretical it would be better to create a new ticket for each time it happens. Since that way the "system" will let them know it's a new case and not the old one that they thought was solved.
I just placed 20-ish silo's in sector 3 on the test server, but still got my island up and running. Didn't have an empty wheatfield in sector 3, but did try 4 in sector 1, but still in business. Didn't have a depleted gold mine, but I don't think that has something to do with it, since it was "a few hours before".
You can always try, but would I be surprised if that has something to do with it. I know that Firefox has more troubles with flash then Chrome, but usually that only results in "temporary" crashes, which allow you to just log back in.